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Herbarz Polski; Volume 8
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Postępy 2/1982
Jeden z archiwalnych numerów "Postępów Astronomii". Było to czasopismo naukowe, a później popularnonaukowe na temat astronomii i badań kosmosu, wydawane w latach 1953-1997 przez Polskie Towarzystwo Astronomiczne (PTA). W roku 1998 roku nastąpiło połączenie z czasopismem "Urania" i od tamtej pory ukazuje się jako "Urania - Postępy Astronomii". Obecnie "Urania - Postępy Astronomii" to nowoczesny i elegancki magazyn dla wszystkich miłośników kosmosu, wydawany wspólnie przez Polskie Towarzystwo Astronomiczne, zrzeszające zawodowych astronomów oraz Polskie Towarzystwo Miłośników Astronomii (PTMA), którego członkami są pasjonaci kosmosu. Redakcja "Uranii - Postępów Astr...
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Wikipedia @ 20
Wikipedia's first twenty years: how what began as an experiment in collaboration became the world's most popular reference work. We have been looking things up in Wikipedia for twenty years. What began almost by accident—a wiki attached to an nascent online encyclopedia—has become the world's most popular reference work. Regarded at first as the scholarly equivalent of a Big Mac, Wikipedia is now known for its reliable sourcing and as a bastion of (mostly) reasoned interaction. How has Wikipedia, built on a model of radical collaboration, remained true to its original mission of “free access to the sum of all human knowledge” when other tech phenomena have devolved into advertising p...
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